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How to rename a file using Python
...rename structure we want:
p.rename(Path(p.parent, new_file_name + ext))
More shortly to showcase its simplicity:
Python 3.6+:
from pathlib import Path
p = Path(some_path)
p.rename(Path(p.parent, f"{p.stem}_1_{p.suffix}"))
Versions less than Python 3.6 use the string format method instead:
f...
MySQL ON vs USING?
...erence between ON and USING() ? As far as I can tell, USING() is just more convenient syntax, whereas ON allows a little more flexibility when the column names are not identical. However, that difference is so minor, you'd think they'd just do away with USING() .
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Is there a command to refresh environment variables from the command prompt in Windows?
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What's the difference between VARCHAR and CHAR?
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What is the best way to filter a Java Collection?
...Person.class).getAge(),
greaterThan(16)));
Can you imagine something more readable?
Disclaimer: I am a contributor on lambdaj
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Why does SIGPIPE exist?
...special it needs its own signal? perhaps the pure filter programs is a lot more common that I imagine.
– Arvid
Aug 28 '15 at 20:34
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Java 8: Where is TriFunction (and kin) in java.util.function? Or what is the alternative?
...t too with a constructive one, but destructive composition looks nicer and more like a list or a decorator, and the constructive one looks a lot like a tree. And things like backtracking
with constructive functions are just not nice. You can just save the partial functions of a destructive one (dyn...
When to add what indexes in a table in Rails
...ot.
Since Version 5 of rails the index will be created automatically, for more information see here.
Should I add "index" to the automatically created "id" column?
No, this is already done by rails
Should I add "index(unique)" to the automatically created "id" column?
No, same as above
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When should a class be Comparable and/or Comparator?
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@mel3kings - Link is no more accessible.
– Gaurav
Nov 17 '18 at 7:15
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JavaScript for detecting browser language preference [duplicate]
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